When you someone tells you to read 'a book' and you take their advice as literally as you can. :P
Not bad, not bad at all. I kinda dig the muted colour look and how your character is reading a book with just one hand. I'd mention that the legs are too short for the torso, but I'm pretty sure that was a stylistic choice rather than anything else.
Nice simple drawing and there's nothing wrong with that.
Keep up the practice and pencil crayons will never make you uncomfortable again. haha
Take 'er easy.